在我国山地森林中,桦树是一大家族,仅大兴安岭山地就有体态各异的五种,人们称之为桦树五姐妹。她们在不同的生长环境中展示着各自的风姿。 大姐白桦出落的文文静静,亭亭玉立,像是一位仙女。她茎干洁白,细枝枣红,绿叶亮丽,树冠若西施头饰,于风中婆娑起舞,枝叶低声歌唱。白桦并非只因美丽而引人注意,她在众姐妹中姿态高雅,性格谦和,不怕严寒、不嫌土壤贫瘠,只要有阳光照耀,就能在各种环境中生长,迅速成 In our country mountain forest, birch is a big family, there are five different forms in the mountains of the Greater Khingan Range, people call it the five birch sister. They show their own grace in different growth environments. Big birch Wenhua out of the quiet, slim, like a fairy. Her stem white, twigs purplish red, beautiful green leaves, crown if the West headdress, whirling in the wind, branches and leaves whispered singing. The birch is not only attractive because of her beauty. She is an elegant, gentle man with many sisters. She is not afraid of freezing cold and poor soil. As long as she is in the sunshine, she can grow in all kinds of environments and quickly become